| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 99 |
9.7%
|
| 0 | None | 617 |
60.5%
|
| 1 | 6 |
0.6%
|
|
| 2 | 5 |
0.5%
|
|
| 3 | 4 |
0.4%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 20 |
2%
|
|
| 10 | 40 |
3.9%
|
|
| 15 | 13 |
1.3%
|
|
| 20 | 58 |
5.7%
|
|
| 25 | 21 |
2.1%
|
|
| 30 | 46 |
4.5%
|
|
| 35 | 12 |
1.2%
|
|
| 40 | 38 |
3.7%
|
|
| 45 | 3 |
0.3%
|
|
| 50 | 9 |
0.9%
|
|
| 60 | 3 |
0.3%
|
|
| 70 | 3 |
0.3%
|
|
| 75 | 1 |
0.1%
|
|
| 80 | 4 |
0.4%
|
|
| 90 | 3 |
0.3%
|
|
| 100 | 13 |
1.3%
|